tag defines a list item. The table lists only the first IE in eV units. Most reactive of the metals. Related Items. He found the petalite contained “silica, alumina and an alkali.” (1) The new alkali metal in the petalite had unique properties. Element provides support and care services to elders in an intergenerational living arrangement that allow all generations of family to live together, supported to build rich lives on meaningful bonding experiences that dynamically engage all ages. Thus, lithium, which floats on water, is highly reactive with it and forms strong hydroxide solutions, yielding lithium hydroxide (LiOH) and hydrogen gas. Creating an unordered list in HTML is accomplished using the unordered list block-level element,